Daikin VRV S RXQ4/5ARV1 - Page 244

Troubleshooting by Error Code SiAF332111E
238 Part 6 Service Diagnosis
Note(s)
Reference
1. RXQ4/5AR, RXMQ6AR: outdoor unit main PCB (A1P)
RXMQ8-12AR: inverter PCB (A3P)
CHECK 4 Refer to page 340.
NO
YES
NO
YES
NO
Power ON
Restart the
compressor, and then
check for the operation.
Does the error
recur?
Has the
compressor
started up at high
differential pressure
(0.5 MPa or
more)?
The error recurs at
startup.
YESYES
Power OFF
Power OFF
Power ON
Power ON
Power OFF
Pressure equalization failure.
Check for the refrigerant
system.
Quit work.
Pressure equalization failure
may have occurred. Check for
the refrigerant system.
YES
YES
NO
Replace the relevant PCB (1).
NO
The error recurs at
startup.
Continue operation.
The error could have
resulted from instantaneous
power failure.
A
Continue operation.
Replace the compressor (M1C).
CHECK 4
Is the power
transistor
normal?
Replace the relevant
PCB (
1).
This is not a failure of the
PCB. Reinstall the PCB.
Replace the compressor (M1C).
YES
NO
NO
The
internal wiring of
the compressor coil is
defective.
The insulation
resistance of the
compressor is low
(< 100 k)
YES